They could have used the same fabrics ala spider-man and gotten very creative with colouring and design instead of the lackluster, "lets throw these mutant freaks in black leather, yay"!

They couldn't have had individual costumes - it wouldn't have made sense and it wouldn't have been realistic. Since when do teenagers have the time and inclination to sew and design complicated costumes? Since when would LOGAN have the time and inclination to sew and design complicated costumes?

__________________Yes, I'm a chick. Yes, that does mean I have "boobs and stuff". No, I won't send you pictures.